A first-of-its-kind target-based model to select pollution-control technologies and digital smart poles — that display live data on pollutants and may have tools installed like mists to clean the air — are set to boost Delhi’s fight against air pollution. Under the Delhi government’s Innovation Challenge, launched last October, 22 technologies are being tested, including 13 aimed at vehicular emissions — one of the biggest contributors to Delhi’s air pollution — and nine at reducing ambient pollution. Besides the display boards installed outside the Capital’s air-quality monitoring stations, pollution parameters can now be read on smart poles. Also Read | Eye on winter pollution, Delhi government moves up school sports calendarOn Monday evening, the display read: “Total Air Cleaned (cu ft) Last 24 hours: 4,04,697.” Story continues below this adAmbient pollution-control technologies include large-scale air purifiers, air-treatment towers, pole and road-divider dust collectors and particulate-aggregation systems.